Based on what exactly? We have no way to socialize humans in isolation - except for perhaps with autism where people self-isolate themselves from social norms. And what I've seen over and over again with autistic boys and men is that they do not "naturally" adhere to "traditional" norms at all.
The Smithsonian says the first war was only 10k years ago. For 97% of human history men (and women) actively participated in social organization styles that discouraged fighting, bragging, and other anti-social behaviors that many modern American men now consider a central aspect of their masculinity. They felt and expressed their emotions and did all sorts of other things that regular human beings do that are not "allowed" for men in modern patriarchal cultures. Men just a few hundred years ago expressed their emotions all the time — crying was common, in the Bible, in the Greek heroic epic, the Iliad, and amongst Medieval knights.
Most men don't "choose" traditional masculinity. They are indoctrinated into it from birth and most of them, including you I think some of the time, don't seem to realize that there are other options. It's not because it makes sense - it's because you've been actively fed propaganda, all the while experiencing behavioral conditioning if you ever strayed from that since you were a baby. If you want to make an active choice, you have to first deprogram yourself from your brainwashing so that you can have something approximating actual free will.
Only about 2% of what we consider to be thought is conscious. The rest is the influence of parents, culture, religion, media, peers, and prior experiences - all of which make most of our "choices" in life for us via our subconscious minds. Some cognitive scientists think no thought is conscious. Pretending like men are consciously and actively choosing these norms goes against not just social science, but cognitive science. It's absurd!
I've never once said that men are evil or sociopaths or anything remotely like that, but the fact remains that we are all conditioned into social gender norms that we have to first challenge before we can remotely begin to approximate who we actually naturally or authentically are. It's a lot of work that most people, much less most men - who are socially conditioned away from introspection - have engaged in.
And, it's also not remotely in dispute that when you socialize men to be aggressive, dominant, to artificially suppress any vulnerable emotions except anger, and to control women, it's going to cause a lot of social problems. It harms women and children, but it also harms men.
Defending your social programming as something that you (and other men) want to defend as just who they are or "their choice" is frankly laughable. I get that you are deeply identified with it, but it's not you, and until you spend about 10 years deeply investigating who you actually are by challenging every aspect of your personality, you'll never know who you might truly be. If you don't wish to undertake that laborious process, I totally understand, but don't pretend like you haven't been influenced by the pervasive propaganda you've been surrounded by your entire existence.
There is no inherent binary in humans. We're all individuals, influenced by our environment, our conditioning and other factors. This has nothing to do with feminism and everything to do with brain science, social science and . The fact that you've been taught to identify as "not a girl" means you have a hard time with this.
I get that you are deeply emotionally attached to your beliefs and that they feel correct to you so I don't imagine I'll change your mind at all, but maybe someone else reading this will see the truth in it.
And by the way, 46% of NFL fans are female. Liking football is not an intrinsic aspect of maleness.